./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_stack-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a870e8a4a7dff1b238c9b19b47586f7abd44e3f0eb9969b7dad7bbd7f80e506 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:24,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:25,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 21:00:25,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:25,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:25,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:25,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:25,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:25,106 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:25,111 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:25,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:25,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:25,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:25,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:25,115 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:25,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:25,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:25,117 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:00:25,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:25,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:00:25,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:25,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:25,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:25,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:25,121 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:00:25,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:25,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:25,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:25,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:25,123 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:25,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:25,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:25,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:25,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:25,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:25,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:25,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:00:25,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:25,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:25,126 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:25,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:25,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:25,127 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a870e8a4a7dff1b238c9b19b47586f7abd44e3f0eb9969b7dad7bbd7f80e506 [2023-11-21 21:00:25,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:25,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:25,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:25,424 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:25,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:25,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/seq-pthread/cs_stack-2.i [2023-11-21 21:00:28,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:29,046 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:29,054 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/sv-benchmarks/c/seq-pthread/cs_stack-2.i [2023-11-21 21:00:29,081 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/data/d0988e7ba/66c3ce6cc23c475c89af043eb80d7a25/FLAG924ae8bb0 [2023-11-21 21:00:29,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/data/d0988e7ba/66c3ce6cc23c475c89af043eb80d7a25 [2023-11-21 21:00:29,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:29,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:29,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:29,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:29,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:29,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:29" (1/1) ... [2023-11-21 21:00:29,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6821a0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:29, skipping insertion in model container [2023-11-21 21:00:29,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:29" (1/1) ... [2023-11-21 21:00:29,169 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:29,622 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/sv-benchmarks/c/seq-pthread/cs_stack-2.i[34556,34569] [2023-11-21 21:00:29,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:29,820 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:29,931 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/sv-benchmarks/c/seq-pthread/cs_stack-2.i[34556,34569] [2023-11-21 21:00:29,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:30,074 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:30,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30 WrapperNode [2023-11-21 21:00:30,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:30,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:30,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:30,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:30,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,171 INFO L138 Inliner]: procedures = 252, calls = 268, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 601 [2023-11-21 21:00:30,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:30,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:30,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:30,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:30,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,195 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,249 INFO L187 HeapSplitter]: Split 120 memory accesses to 16 slices as follows [2, 8, 8, 20, 12, 10, 12, 6, 4, 6, 10, 6, 2, 2, 4, 8] [2023-11-21 21:00:30,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:30,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:30,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:30,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:30,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:30,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:30,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:30,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f180ccec-7032-4a5d-9391-ed2724f94139/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 21:00:30,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 21:00:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-21 21:00:30,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-21 21:00:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 21:00:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 21:00:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 21:00:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 21:00:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 21:00:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 21:00:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 21:00:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 21:00:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 21:00:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 21:00:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 21:00:30,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 21:00:30,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 21:00:30,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-21 21:00:30,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-21 21:00:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-21 21:00:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 21:00:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 21:00:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 21:00:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 21:00:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 21:00:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 21:00:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 21:00:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 21:00:30,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 21:00:30,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 21:00:30,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 21:00:30,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 21:00:30,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 21:00:30,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-21 21:00:30,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-21 21:00:30,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-21 21:00:30,490 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-21 21:00:30,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-21 21:00:30,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:00:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:00:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:00:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 21:00:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 21:00:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 21:00:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 21:00:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 21:00:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 21:00:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 21:00:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 21:00:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 21:00:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 21:00:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-21 21:00:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-21 21:00:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-21 21:00:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:00:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:00:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:00:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 21:00:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 21:00:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 21:00:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 21:00:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 21:00:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 21:00:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 21:00:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 21:00:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 21:00:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 21:00:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-21 21:00:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-21 21:00:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-21 21:00:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure get_top [2023-11-21 21:00:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure get_top [2023-11-21 21:00:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 21:00:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 21:00:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 21:00:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 21:00:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 21:00:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 21:00:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 21:00:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 21:00:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 21:00:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 21:00:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 21:00:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 21:00:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 21:00:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-21 21:00:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-21 21:00:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-21 21:00:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-21 21:00:30,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-21 21:00:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-21 21:00:30,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-21 21:00:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 21:00:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-21 21:00:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-11-21 21:00:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-11-21 21:00:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-21 21:00:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-21 21:00:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:00:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:00:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:00:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 21:00:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 21:00:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 21:00:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 21:00:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 21:00:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 21:00:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 21:00:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 21:00:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 21:00:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 21:00:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 21:00:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 21:00:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 21:00:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:30,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:30,834 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:30,837 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:30,923 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:30,923 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-11-21 21:00:31,412 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,412 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);push_#res#1 := 0; [2023-11-21 21:00:31,412 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,412 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-11-21 21:00:31,412 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,413 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-11-21 21:00:31,413 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,413 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-11-21 21:00:31,413 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);pop_#res#1 := 0; [2023-11-21 21:00:31,413 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296));pop_#res#1 := 0; [2023-11-21 21:00:31,419 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L986-4: SUMMARY for call __CS_cs(); srcloc: null [2023-11-21 21:00:31,420 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);push_#res#1 := 0; [2023-11-21 21:00:31,420 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,437 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L930-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-11-21 21:00:31,437 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L930-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,439 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,439 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-11-21 21:00:31,440 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-11-21 21:00:31,440 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,440 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-21 21:00:31,440 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296); [2023-11-21 21:00:31,440 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint L930: SUMMARY for call __CS_cs(); srcloc: null [2023-11-21 21:00:32,030 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:32,214 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:32,214 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 21:00:32,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:32 BoogieIcfgContainer [2023-11-21 21:00:32,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:32,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:32,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:32,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:32,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:29" (1/3) ... [2023-11-21 21:00:32,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b18ad0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:32, skipping insertion in model container [2023-11-21 21:00:32,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30" (2/3) ... [2023-11-21 21:00:32,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b18ad0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:32, skipping insertion in model container [2023-11-21 21:00:32,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:32" (3/3) ... [2023-11-21 21:00:32,225 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stack-2.i [2023-11-21 21:00:32,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:32,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:00:32,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:32,323 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@309515bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:32,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:00:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 196 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 113 states have internal predecessors, (159), 75 states have call successors, (75), 9 states have call predecessors, (75), 9 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-21 21:00:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-21 21:00:32,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:32,353 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:32,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:32,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash 907377345, now seen corresponding path program 1 times [2023-11-21 21:00:32,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:32,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858215383] [2023-11-21 21:00:32,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:32,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 21:00:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 21:00:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 21:00:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 21:00:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-21 21:00:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 21:00:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 21:00:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 21:00:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 21:00:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 21:00:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-21 21:00:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 21:00:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 21:00:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-21 21:00:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-21 21:00:33,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858215383] [2023-11-21 21:00:33,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858215383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:33,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:33,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:00:33,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506509072] [2023-11-21 21:00:33,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:33,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:00:33,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:00:33,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:00:33,838 INFO L87 Difference]: Start difference. First operand has 196 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 113 states have internal predecessors, (159), 75 states have call successors, (75), 9 states have call predecessors, (75), 9 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-21 21:00:35,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:37,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:38,520 INFO L93 Difference]: Finished difference Result 383 states and 609 transitions. [2023-11-21 21:00:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:00:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 65 [2023-11-21 21:00:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:38,541 INFO L225 Difference]: With dead ends: 383 [2023-11-21 21:00:38,541 INFO L226 Difference]: Without dead ends: 344 [2023-11-21 21:00:38,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:00:38,548 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 255 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:38,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 859 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2023-11-21 21:00:38,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-21 21:00:38,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 340. [2023-11-21 21:00:38,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 192 states have (on average 1.46875) internal successors, (282), 196 states have internal predecessors, (282), 131 states have call successors, (131), 17 states have call predecessors, (131), 16 states have return successors, (135), 128 states have call predecessors, (135), 131 states have call successors, (135) [2023-11-21 21:00:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 548 transitions. [2023-11-21 21:00:38,653 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 548 transitions. Word has length 65 [2023-11-21 21:00:38,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:38,654 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 548 transitions. [2023-11-21 21:00:38,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-21 21:00:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 548 transitions. [2023-11-21 21:00:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-21 21:00:38,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:38,667 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:38,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:00:38,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:38,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1753357489, now seen corresponding path program 1 times [2023-11-21 21:00:38,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:38,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127945645] [2023-11-21 21:00:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:38,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 21:00:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 21:00:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 21:00:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-21 21:00:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 21:00:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-21 21:00:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 21:00:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 21:00:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 21:00:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 21:00:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 21:00:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 21:00:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 21:00:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-21 21:00:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-21 21:00:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 21:00:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-21 21:00:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 21:00:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-21 21:00:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-21 21:00:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-21 21:00:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-21 21:00:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-21 21:00:41,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:41,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127945645] [2023-11-21 21:00:41,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127945645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:41,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:41,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 21:00:41,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278661021] [2023-11-21 21:00:41,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:41,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 21:00:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:41,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 21:00:41,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:00:41,315 INFO L87 Difference]: Start difference. First operand 340 states and 548 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-21 21:00:43,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:45,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:47,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:49,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:51,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:53,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:59,244 INFO L93 Difference]: Finished difference Result 676 states and 1092 transitions. [2023-11-21 21:00:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 21:00:59,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 123 [2023-11-21 21:00:59,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:59,258 INFO L225 Difference]: With dead ends: 676 [2023-11-21 21:00:59,258 INFO L226 Difference]: Without dead ends: 641 [2023-11-21 21:00:59,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-21 21:00:59,263 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 368 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 423 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:59,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 920 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 774 Invalid, 6 Unknown, 0 Unchecked, 15.7s Time] [2023-11-21 21:00:59,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-11-21 21:00:59,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 629. [2023-11-21 21:00:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 353 states have (on average 1.4730878186968839) internal successors, (520), 365 states have internal predecessors, (520), 243 states have call successors, (243), 30 states have call predecessors, (243), 32 states have return successors, (263), 237 states have call predecessors, (263), 243 states have call successors, (263) [2023-11-21 21:00:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1026 transitions. [2023-11-21 21:00:59,424 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1026 transitions. Word has length 123 [2023-11-21 21:00:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:59,425 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 1026 transitions. [2023-11-21 21:00:59,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-21 21:00:59,426 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1026 transitions. [2023-11-21 21:00:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-21 21:00:59,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:59,435 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:59,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:00:59,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:59,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:59,436 INFO L85 PathProgramCache]: Analyzing trace with hash 555545841, now seen corresponding path program 1 times [2023-11-21 21:00:59,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:59,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058767719] [2023-11-21 21:00:59,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:59,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-21 21:01:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:00,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 21:01:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:00,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:00,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 21:01:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:00,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-21 21:01:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 21:01:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-21 21:01:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 21:01:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 21:01:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 21:01:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 21:01:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 21:01:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 21:01:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 21:01:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-21 21:01:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-21 21:01:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 21:01:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-21 21:01:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 21:01:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-21 21:01:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-21 21:01:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-21 21:01:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-21 21:01:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-21 21:01:01,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:01,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058767719] [2023-11-21 21:01:01,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058767719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:01,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:01,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 21:01:01,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906217862] [2023-11-21 21:01:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:01,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 21:01:01,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 21:01:01,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:01:01,574 INFO L87 Difference]: Start difference. First operand 629 states and 1026 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-21 21:01:03,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:05,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:07,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:09,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:11,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:13,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:19,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:01:19,590 INFO L93 Difference]: Finished difference Result 1251 states and 2024 transitions. [2023-11-21 21:01:19,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 21:01:19,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 123 [2023-11-21 21:01:19,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:01:19,599 INFO L225 Difference]: With dead ends: 1251 [2023-11-21 21:01:19,600 INFO L226 Difference]: Without dead ends: 632 [2023-11-21 21:01:19,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-21 21:01:19,613 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 370 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 423 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-11-21 21:01:19,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 921 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 769 Invalid, 6 Unknown, 0 Unchecked, 15.9s Time] [2023-11-21 21:01:19,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2023-11-21 21:01:19,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 624. [2023-11-21 21:01:19,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 350 states have (on average 1.4628571428571429) internal successors, (512), 363 states have internal predecessors, (512), 240 states have call successors, (240), 30 states have call predecessors, (240), 33 states have return successors, (256), 234 states have call predecessors, (256), 240 states have call successors, (256) [2023-11-21 21:01:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 1008 transitions. [2023-11-21 21:01:19,778 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 1008 transitions. Word has length 123 [2023-11-21 21:01:19,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:01:19,781 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 1008 transitions. [2023-11-21 21:01:19,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-21 21:01:19,782 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 1008 transitions. [2023-11-21 21:01:19,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-21 21:01:19,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:01:19,794 INFO L195 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:19,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:01:19,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:01:19,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:19,795 INFO L85 PathProgramCache]: Analyzing trace with hash -428668260, now seen corresponding path program 1 times [2023-11-21 21:01:19,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:19,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687134971] [2023-11-21 21:01:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:19,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:20,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 21:01:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 21:01:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 21:01:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-21 21:01:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 21:01:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-21 21:01:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 21:01:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 21:01:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 21:01:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 21:01:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 21:01:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 21:01:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 21:01:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-21 21:01:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-21 21:01:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 21:01:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-21 21:01:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 21:01:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-21 21:01:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-21 21:01:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-21 21:01:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-21 21:01:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-21 21:01:21,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:21,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687134971] [2023-11-21 21:01:21,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687134971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:21,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:21,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 21:01:21,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620996081] [2023-11-21 21:01:21,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:21,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 21:01:21,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:21,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 21:01:21,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:01:21,827 INFO L87 Difference]: Start difference. First operand 624 states and 1008 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23)